213282388 has 24 divisors (see below), whose sum is σ = 414862560. Its totient is φ = 95116320.

The previous prime is 213282379. The next prime is 213282397. The reversal of 213282388 is 883282312.

It is an interprime number because it is at equal distance from previous prime (213282379) and next prime (213282397).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43398 + ... + 48061.

It is an arithmetic number, because the mean of its divisors is an integer number (17285940).

Almost surely, 2^213282388 is an apocalyptic number.

It is an amenable number.

213282388 is a deficient number, since it is larger than the sum of its proper divisors (201580172).

213282388 is a wasteful number, since it uses less digits than its factorization.

213282388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91527 (or 91525 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 213282388 is about 14604.1907684062. The cubic root of 213282388 is about 597.4730652004.

It can be divided in two parts, 21328 and 2388, that added together give a square (23716 = 154²).

The spelling of 213282388 in words is "two hundred thirteen million, two hundred eighty-two thousand, three hundred eighty-eight".